// Copyright 2019 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.

package common

// Stage represents a stage for some binlog related objects, like Writer.Reader.
type Stage int32

// valid stages for binlog related objects.
const (
	StageNew Stage = iota
	StagePrepared
	StageClosed
)

// String implements Stringer.String.
func (s Stage) String() string {
	switch s {
	case StageNew:
		return "new"
	case StagePrepared:
		return "prepared"
	case StageClosed:
		return "closed"
	default:
		return "unknown"
	}
}
